DocumentCode
917026
Title
Broadband pulse-optimised antenna
Author
Theodorou, E.A. ; Gorman, M.R. ; Rigg, P.R. ; Kong, F.N.
Author_Institution
Cambridge University, Engineering Laboratories, Cambridge, UK
Volume
128
Issue
3
fYear
1981
fDate
6/1/1981 12:00:00 AM
Firstpage
124
Lastpage
130
Abstract
The theoretical far-field pattern, gain, and aperture are derived for a V-shaped dipole carrying a nonuniform current wave. Particular attention is given to broadening in the far field of a sharp current pulse applied at the input. The optimum variation of characteristic TEM wave impedance is then derived with reflection coefficient and pulse broadening as constraints. Measurements on a practical design of 70 cm length show a bandwidth from 200 MHz to 1.6 GHz for an input voltage reflection coefficient less than 0.1 and a pulse broadening of 35ps. The directional diagram is¿¿25¿¿ to half power.
Keywords
dipole antennas; 200 MHz to 1.6 GHz; V-shaped dipole; aperture; characteristic TEM wave impedance; dipole antennas; directional diagram; far-field pattern; gain; impulse radar; nonuniform current wave; pulse broadening; reflection coefficient;
fLanguage
English
Journal_Title
Microwaves, Optics and Antennas, IEE Proceedings H
Publisher
iet
ISSN
0143-7097
Type
jour
DOI
10.1049/ip-h-1.1981.0020
Filename
4644900
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